Player 2 is really short to be a center if you were looking at training him. However, he is interesting enough as a P-all star and drafted by your team. I would suggest playing him at PF and training one on one forwards for weeks that you need to win.
If you are looking to train him long term, he will need to train in outside defense. So for weeks where you are going to win easily, you can train him on pressure PG.
You have a bunch of young players. I don't know how good they are but if they are worth training, doing one on one forwards should be optimal.